jewelry

Step 2: Advanced Gemology Lesson 2 Back to syllabus The optical properties of gems attract our eyes and can give a cut stone a unique character. However,…

People frequently ask me to explain how gemstone color change works. Some stones can change color under different types of light sources. Although…

I’ve faced many questions about the element chromium (Cr), the red coloration of minerals, and the gemstone red beryl. One of the many…

Gemstone enhancements are applied to gems to improve their appearance and wearability. Some of these procedures have been used for centuries,…

Gemstone heat treatments can turn mediocre pieces into items of great beauty. Heating a gem to a specific temperature and then cooling it is a common…

Most gems on the market today receive various treatments to change their natural colors and create more desirable, salable products. Radiation…

Step 2: Advanced Gemology Lesson 8 Back to syllabus In 1999, General Electric (GE) introduced a new diamond treatment into the jewelry trade. The…

One of the simplest ways to distinguish natural from synthetic gems is finding inclusions that can only be the result of laboratory growth. You…

Gemstone treatments can have a significant impact on the value and stability of a stone. The following enhancement processes leave behind some…